SM UB-111

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UB 148 at sea 2.jpeg
UB-148 at sea, a U-boat similar to UB-111.
History
German Empire
Name: UB-111
Ordered: 6/8 February 1917[1]
Builder: Blohm & Voss, Hamburg
Cost: 3,714,000 German Papiermark
Yard number: 317
Launched: 1 September 1917[2]
Commissioned: 5 April 1918[2]
Fate: surrendered 21 November 1918, broken up[2]
General characteristics [2]
Class & type: German Type UB III submarine
Displacement:
  • 519 t (511 long tons) surfaced
  • 649 t (639 long tons) submerged
Length: 55.30 m (181 ft 5 in) (o/a)
Beam: 5.80 m (19.0 ft)
Draught: 3.70 m (12 ft 2 in)
Propulsion:
Speed:
  • 13.3 knots (24.6 km/h; 15.3 mph) surfaced
  • 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range:
  • 7,420 nmi (13,740 km; 8,540 mi) at 6 knots (11 km/h; 6.9 mph) surfaced
  • 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 50 m (160 ft)
Complement: 3 officers, 31 men[2]
Armament:
Service record
Part of:
  • Flanders Flotilla
  • 27 July – 14 October 1918
  • II Flotilla
  • 14 October – 11 November 1918
Commanders:
  • Kptlt. Egon von Werner[3]
  • 5 April – 21 November 1918
Operations: 3 patrols
Victories: 7 merchant ships sunk (694 GRT)

SM UB-111 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 5 April 1918 as SM UB-111.[Note 1]

UB-111 was surrendered to Britain on 21 November 1918 in accordance with the requirements of the Armistice with Germany and broken up in Bo'ness in 1919-20.[2]

Construction

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She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 1 September 1917. UB-111 was commissioned in the spring the next year under the command of Kptlt. Egon von Werner. Like all Type UB III submarines, UB-111 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-111 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,420 nautical miles (13,740 km; 8,540 mi). UB-111 had a displacement of 519 t (511 long tons) while surfaced and 649 t (639 long tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 7.4 knots (13.7 km/h; 8.5 mph) when submerged.

Summary of raiding history

Date Name Nationality Tonnage[Note 2] Fate[4]
24 August 1918 Hollandia  Netherlands 103 Sunk
24 August 1918 Majoor Thomson  Netherlands 113 Sunk
24 August 1918 Maria Johanna  Netherlands 126 Sunk
24 August 1918 Neerlandia II  Netherlands 100 Sunk
24 August 1918 Neerlandia III  Netherlands 117 Sunk
24 August 1918 Secunda  Netherlands 30 Sunk
24 August 1918 Stella  Netherlands 105 Sunk

References

Notes

  1. "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
  2. Tonnages are in gross register tons

Citations

  1. Rössler 1979, p. 66.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Gröner 1991, pp. 25-30.
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Bibliography

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